A 3-year field evaluation of pasture rotation and supplementary feeding to control parasite infection in first-season grazing cattle—Effects on animal performance

Larsson, Anna; Dimander, Sten-Olof; Rydzik, A.; Uggla, A.; Waller, P.J.; Höglund, Johan

doi:10.1016/j.vetpar.2006.07.017

Cited by 33 publications

(19 citation statements)

References 29 publications

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“…During the standardisation period of 28 days [29], steers grazed a ryegrass/white clover permanent pasture adjacent to the main experimental plots as one group. Liveweight data collected on Day minus 28, Day minus 14 and Day 0 were used to determine covariate growth rates.…”

Section: Methodsmentioning

confidence: 99%

Effects of Chicory/Perennial Ryegrass Swards Compared with Perennial Ryegrass Swards on the Performance and Carcass Quality of Grazing Beef Steers

et al. 2014

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An experiment investigated whether the inclusion of chicory (Cichorium intybus) in swards grazed by beef steers altered their performance, carcass characteristics or parasitism when compared to steers grazing perennial ryegrass (Lolium perenne). Triplicate 2-ha plots were established with a chicory/ryegrass mix or ryegrass control. Forty-eight Belgian Blue-cross steers were used in the first grazing season and a core group (n = 36) were retained for finishing in the second grazing season. The experiment comprised of a standardisation and measurement period. During standardisation, steers grazed a ryegrass/white clover pasture as one group. Animals were allocated to treatment on the basis of liveweight, body condition and faecal egg counts (FEC) determined 7 days prior to the measurement period. The measurement period ran from 25 May until 28 September 2010 and 12 April until 11 October 2011in the first and second grazing year. Steers were weighed every 14 days at pasture or 28 days during housing. In the first grazing year, faecal samples were collected for FEC and parasite cultures. At the end of the first grazing year, individual blood samples were taken to determine O. ostertagi antibody and plasma pepsinogen levels. During winter, animals were housed as one group and fed silage. In the second grazing year, steers were slaughtered when deemed to reach fat class 3. Data on steer performance showed no differences in daily live-weight gain which averaged 1.04 kg/day. The conformation, fat grade and killing out proportion of beef steers grazing chicory/ryegrass or ryegrass were not found to differ. No differences in FEC, O. ostertagi antibody or plasma pepsinogen levels of beef steers grazing either chicory/ryegrass or ryegrass were observed. Overall, there were no detrimental effects of including chicory in swards grazed by beef cattle on their performance, carcass characteristics or helminth parasitism, when compared with steers grazing ryegrass.

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Section: Methodsmentioning

confidence: 99%

Effects of Chicory/Perennial Ryegrass Swards Compared with Perennial Ryegrass Swards on the Performance and Carcass Quality of Grazing Beef Steers

et al. 2014

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“…Rotational pasture management and controlled pasture allowance further minimized pasture contamination. In a study by Larrson et al (2006), cattle grazed under a rotational pasture system performed almost as well as those that were not under a rotational management system but were instead treated for parasitic infection with doramectin. Furthermore, the larger pastures on which the heifers in the current study were grazed were divided with an additional strip of grass offered when the heifers had grazed down the proffered grazing area.…”

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confidence: 99%

Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers

et al. 2015

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Shepley, E., Vasseur, E., Bergeron, R., Villeneuve, A. and Lachance, S. 2015. Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers. Can. J. Anim. Sci. 95: 533–537. Bioactive forages, such as birdsfoot trefoil, may serve as an alternative to anthelmintic drugs in pastured dairy heifers. Differences in parasite burden and growth were examined between eight treatment heifers fed a birdsfoot trefoil mixture and nine control heifer fed alfalfa silage 45-min per day for 12 wk. A significant 3.8- to 9.4-fold reduction in fecal egg counts was observed for treatment heifers at weeks 5, 9, 11 and 12. No treatment effect was found for weight gain. Our results suggest that birdsfoot trefoil may reduce parasite fecal egg counts in pastured dairy heifers without detrimental impact on growth.

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“…Rotational grazing and its effect on plant and animal production has been thoroughly reviewed (Briske et al 2008), and there is some evidence that rotational grazing may be useful for reducing gut parasites (Larsson et al 2006), but we know of no studies focused on how rotational grazing may allow cow herds to avoid being discovered by pest ßies that emerge from their pats on previously grazed pastures. Although this study did not examine ßy loads directly, it does offer evidence that face ßies can move great distances away from emergent pastures, nearly 600 m in two cases.…”

Section: Discussionmentioning

confidence: 99%

Use of a Highly Sensitive Immunomarking System to Characterize Face Fly (Diptera: Muscidae) Dispersal From Cow Pats

et al. 2014

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We tested an immunomarking system that used egg white as marker and enzyme-linked immunosorbent assay as a detection assay to characterize face fly (Musca autumnalis DeGeer) dispersal from cow pats in a pastured beef cattle operation. In microcage assays, adult flies acquired marker after contact with cow pats that were treated with marker and field aged up to 11 d. In arena assays on sprayed full-size cow pats, 77% of eclosed face flies acquired the marker. In a field-marking study, four applications of egg white marker were applied on freshly deposited cow pats over a summer at two peripheral paddocks to a main grazing pasture of ≍50 head of beef cattle. Of the 663 face flies captured, 108 were positive for the egg white marker (16.3%). Of the marked flies, ≍ twofold more male than female flies were captured. Sex-specific dispersal distances were roughly equal up to 450 m, with 11% of female flies dispersing >450 m. Dispersal capability of face flies is discussed in relation to efficacy of rotational grazing and other IPM strategies.

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A 3-year field evaluation of pasture rotation and supplementary feeding to control parasite infection in first-season grazing cattle—Effects on animal performance

Cited by 33 publications

References 29 publications

Effects of Chicory/Perennial Ryegrass Swards Compared with Perennial Ryegrass Swards on the Performance and Carcass Quality of Grazing Beef Steers

Effects of Chicory/Perennial Ryegrass Swards Compared with Perennial Ryegrass Swards on the Performance and Carcass Quality of Grazing Beef Steers

Short Communication: Birdsfoot trefoil as a preventative treatment for gastrointestinal nematodes in pastured dairy heifers

Use of a Highly Sensitive Immunomarking System to Characterize Face Fly (Diptera: Muscidae) Dispersal From Cow Pats

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